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3 years ago

Math problem help please

Mathematics

2 answers:

Harman [31]3 years ago

5 0

Answer:

One ordered pair would be (1, -6).

Step-by-step explanation:

Let x = 1, then

3(1) - y = 9

-y = 9 - 3 = 6

y = -6.

svlad2 [7]3 years ago

4 0

Answer:

Give a value to either x or y.

For example: if x=2,

3x-y=9

3*2-y=9

6-y=9

y=-3

(x,y) = (2,-3) an ordered pair

Step-by-step explanation:

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98 POINTS!!! Write a polynomial function in standard form given the zeros ±√5 , 7

Neporo4naja [7]

Answer:

Step-by-step explanation:

Knowing the three zeros of the equation, we can set it up as follows:

$(x - \sqrt{5})(x + \sqrt{5})(x - 7)$

Multipying the first two expressions together gives us the following:

$(x^{2} - 5)(x - 7)$

Multiplying the two expressions together gives us the following:

$x^{3} - 7x^{2} - 5x + 35$

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3 years ago

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Simplify x3 / x A)x B)1/x2 C)x2 D)1/x

anygoal [31]

The answer is x^2, which is C), because x^2 * x = x^3

6 0

3 years ago

The town recreation committee raised money to increase the circumference of the jogger’s park, which was initially 1000 feet. It

yawa3891 [41]

Answer:C. 3000 ft

Step-by-step explanation:

First, find the radius of the circumference.

By dividing 1000 ft by 2, which is 500, and that is the radius.

Then you multiply the radius by 3, which is 1500.

Finally, you want the circumference, to find the circumference you need to multiply the radius by 2, which is 3000 ft.

That’s it.

3 0

3 years ago

Please help me out!

seropon [69]

Answer:

Second option

Third option

Fourth option

Step-by-step explanation:

We have the following quadratic function

$f(x) =(x-1)(x+7)$

Use the distributive property to multiply the expression

$f(x) =x^2+7x-x-7$

$f(x) =x^2+6x-7$

For a function of the form $f (x) = ax ^ 2 + bx + c$ the x coordinate of the vertex is:

$x =-\frac{b}{2a}$

Then in this case the coordinate of the vertex is:

$x =-\frac{6}{2(1)}$

$x =-3$

To obtain the y coordinate of the vertex we evaluate the function at $x = -3$

$f(-3) =(-3)^2+6(-3)-7$

$f(-3) =9-18-7$

$f(-3) =-16$

Then the vertex is: (-3, -16)

We can see in the graph that the zeros of the function are x=1 and x=-7

Then the function is decreasing from -∞ to -3 and then it is increasing from -3 to ∞

The function is positive for $x$ and $x> 1$

The correct answers are:

Second option

Third option

Fourth option

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3 years ago

An airplane can seat up to 175 passengers the airline has already sold 87 tickets

aniked [119]

What is the question that you are asking? How many seats are left? 88. Or is there more to this question that is not showing?

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